METHOD AND MOULD FOR WELDING THE ENDS OF TWO RAIL PORTIONS
    1.
    发明申请
    METHOD AND MOULD FOR WELDING THE ENDS OF TWO RAIL PORTIONS 有权
    用于焊接两个轨道端部的方法和模具

    公开(公告)号:US20150361620A1

    公开(公告)日:2015-12-17

    申请号:US14653833

    申请日:2013-12-06

    摘要: Method for the aluminothermic welding of rails, involving the steps of:—triggering an aluminothermic reaction in a crucible,—pouring the metal resulting from said reaction into the mould so as to fill the moulding cavity from the rail flange,—after filling the cavity, triggering a second aluminothermic reaction above the rail head, and pouring the metal resulting from said reaction into the cavity in the region of the rail head. The mould used in the method is designed to fit over the ends of two rails to form a moulding cavity comprising a crucible positioned above the rail head region so that it can be fed with molten metal of the cavity via a secondary passage.

    摘要翻译: 涉及以下步骤的方法: - 在坩埚中吸收铝热反应,将由所述反应产生的金属倒入模具中,以便从轨道法兰填充模腔, - 填充腔体 触发轨道头上方的第二次铝热反应,并将由所述反应产生的金属倒入轨头部区域内的空腔。 在该方法中使用的模具被设计成装配在两个轨道的端部上以形成包括位于轨道头部区域上方的坩埚的模制腔,使得其可以经由次级通道供给空腔的熔融金属。

    Mobile rail heater and method for expanding rails
    3.
    发明授权
    Mobile rail heater and method for expanding rails 失效
    移动轨道加热器和扩展轨道的方法

    公开(公告)号:US4860727A

    公开(公告)日:1989-08-29

    申请号:US207240

    申请日:1988-06-16

    IPC分类号: E01B11/46 E01B19/00 E01B29/46

    CPC分类号: E01B29/46 E01B11/46 E01B19/00

    摘要: A method and apparatus for heating railroad rails enabling a convenient and efficient expansion of railroad rails is provided by selectively moving a heat source along a rail. The apparatus includes a frame carrying a heat source such as a series of gas fired burners which direct heat toward the rail to raise the temperature of the rail. The rail heater is provided with a set of wheels enabling the heater to be rolled along a rail while heating the rail. The wheels are mounted to subframes which are shiftably mounted to the frame to permit the heater to conform to the gauge of the rail on which it travels.

    摘要翻译: 通过选择性地沿着轨道移动热源来提供用于加热铁路轨道的方法和装置,其能够方便和有效地扩展铁路轨道。 该装置包括承载诸如一系列燃气燃烧器的热源的框架,其将热量引向轨道以升高轨道的温度。 轨道加热器设置有一组轮子,使得加热器能够在加热轨道的同时沿着轨道滚动。 轮子安装到可移动地安装到框架上的子框架,以允许加热器符合其行进的轨道的规格。

    METHOD OF COOLING RAIL WELD ZONE, DEVICE FOR COOLING RAIL WELD ZONE, AND RAIL WELD JOINT
    7.
    发明申请
    METHOD OF COOLING RAIL WELD ZONE, DEVICE FOR COOLING RAIL WELD ZONE, AND RAIL WELD JOINT 有权
    铁路焊接区冷却方法,铁路焊接区冷却装置及铁路焊接接头

    公开(公告)号:US20120015212A1

    公开(公告)日:2012-01-19

    申请号:US13138791

    申请日:2010-03-30

    IPC分类号: B32B15/00 F28F7/00 F28F27/00

    摘要: The invention provides a method of cooling a rail weld zone. The method includes a first rail web portion cooling process of cooling a rail web portion cooling region of the rail weld zone in a part of a temperature range until the completion of transformation from austenite to pearlite, a second rail web portion cooling process of cooling the rail web portion cooling region after the entire rail web portion of the rail weld zone is transformed to pearlite, a foot portion cooling process of cooling a foot portion of the rail weld zone, and a head portion cooling process of cooling a head portion of the rail weld zone. When cooling time of the first and second rail web portion cooling processes is t minute, a k value satisfies an expression represented as −0.1t+0.63≦k≦−0.1t+2.33.

    摘要翻译: 本发明提供了一种冷却钢轨焊接区域的方法。 该方法包括在一段温度范围内冷却轨道焊接区域的轨道网部分冷却区域直到从奥氏体向珠光体转变为完成的第一轨道网部分冷却过程, 在轨道焊接区域的整个轨道腹板部分之后的轨道网部分冷却区域转变为珠光体,用于冷却轨道焊接区域的脚部的脚部冷却过程,以及冷却头部部分的头部冷却过程 铁路焊接区。 当第一和第二轨道部分冷却过程的冷却时间为t分钟时,k值满足表示为-0.1t + 0.63≦̸ k≦̸ -0.1t + 2.33的表达式。

    Method of cooling rail weld zone, and rail weld joint
    9.
    发明授权
    Method of cooling rail weld zone, and rail weld joint 有权
    钢轨焊接区和钢轨焊接接头的方法

    公开(公告)号:US08557064B2

    公开(公告)日:2013-10-15

    申请号:US13138791

    申请日:2010-03-30

    IPC分类号: C21D9/04 C22C38/02

    摘要: The invention provides a method of cooling a rail weld zone. The method includes a first rail web portion cooling process of cooling a rail web portion cooling region of the rail weld zone in a part of a temperature range until the completion of transformation from austenite to pearlite, a second rail web portion cooling process of cooling the rail web portion cooling region after the entire rail web portion of the rail weld zone is transformed to pearlite, a foot portion cooling process of cooling a foot portion of the rail weld zone, and a head portion cooling process of cooling a head portion of the rail weld zone. When cooling time of the first and second rail web portion cooling processes is t minute, a k value satisfies an expression represented as −0.1t+0.63≦k≦−0.1t+2.33.

    摘要翻译: 本发明提供一种冷却钢轨焊接区域的方法。 该方法包括在一段温度范围内冷却轨道焊接区域的轨道网部分冷却区域直到从奥氏体向珠光体转变为完成的第一轨道网部分冷却过程, 在轨道焊接区域的整个轨道腹板部分之后的轨道网部分冷却区域转变为珠光体,用于冷却轨道焊接区域的脚部的脚部冷却过程,以及冷却头部部分的头部冷却过程 铁路焊接区。 当第一和第二轨网部分冷却过程的冷却时间为t分钟时,k值满足表示为-0.1t + 0.63 @ k @ -0.1t + 2.33的表达式。

    Apparatus for continuously laying track
    10.
    发明授权
    Apparatus for continuously laying track 失效
    连续铺设轨迹的装置

    公开(公告)号:US3896734A

    公开(公告)日:1975-07-29

    申请号:US11375871

    申请日:1971-02-08

    摘要: In laying track rails from a continuously moving train which supports continuous lengths of butt-welded rails and whence the rails are placed on successive ties as the train moves forward, successive rail sections are subjected to heating or cooling while they are placed on the ties and before they are secured thereto, to impart to these rail sections immediately adjacent the point at which they are secured a temperature approximately equal to the median or average yearly ambient temperature.

    摘要翻译: 在从连续移动的列车上铺设轨道轨道时,该列车支撑连续长度的对接焊接的轨道,并且当列车向前移动时轨道被放置在连续的连接件上,连续的轨道段在被放置在连接件上时受到加热或冷却, 在将它们固定到其之前,将这些轨道部分紧靠在它们被固定的点附近的温度近似等于中值或平均每年环境温度。